The automotive field is the largest market for connectors, and automotive connectors account for 23.70% of the global connector industry. From the perspective of the largest sector of automotive connector applications, new energy vehicles are the biggest bright spot. Restricted by issues such as technology, safety, and standard certification, traditional automotive adapter connectors have always been controlled by foreign high-end companies, and there are high barriers for Chinese connector companies to enter the traditional automotive field. With the rise of new energy vehicles, Chinese connector companies have successfully entered the new energy vehicle industry chain. The Chinese brand of new energy vehicles occupies the main market in China. Chinese connector companies such as China Aviation Optoelectronics have successfully supplied Tesla, JAC, BYD and other new energy vehicles.     

        There are nearly a hundred types of electronic connectors that traditional cars need to use, and the number of connectors used in a single vehicle is about 600, which are mainly used in engine management systems, safety systems, entertainment systems, and so on. Compared with traditional fuel vehicles, the demand for connectors for new energy vehicles has increased significantly. The value of low-voltage connectors used in traditional fuel car bicycles is about 1,000 yuan, while the material cost of high-voltage connectors, shielding, flame-retardant requirements and other performance indicators are higher than traditional low-voltage connectors, and the value of connectors used in new energy vehicles and bicycles is much higher. For low-voltage connectors. Among them, the value range of connectors used for pure electric passenger car bicycles is 3000-5000 yuan, and the value range of connectors used for pure electric commercial vehicle bicycles is 8000-10000 yuan.        

        New energy vehicle connectors have a variety of connection methods, which are basically divided into two types: connectors (connected with cables) and connectors (connected with printed circuit boards). Crimp and press-in are the two most commonly used connection methods. This means that the Chinese of these two connection methods can be expressed by the word crimping. The definition of a press-in connector is to press the external force of a pin (also called a terminal) into a hole smaller than the thickness. Because of the low cost, high efficiency, simple operation, high reliability, communication and computer industries with SMT (that is, the surface mount technology is the connection technology).        

        There are two connection methods for electroplating plug (terminal) and injection (rubber shell), independent plug and combined plug. In the connection method, manufacturers usually require that all the plugs are checked for missing and precise positioning during the assembly stage. In addition, the normal test is the same as the stamping stage, and the assembly of the connectors also challenges the test speed of the automatic test system. Most assembly lines take shots once or twice per second, but for each connector that passes through the camera, the vision system usually needs to complete many different inspection items. Therefore, the detection speed becomes an important performance index of the system.        

        The actual position refers to the distance from the front end of each plug to the specified design reference line. The visual inspection process system must be the inspection of the correct position, which is another requirement for the inspection system of the connector assembly. Make this imaginary standard line in the inspection picture, measure the actual position of the front end of each plug, and judge whether it meets the quality standard. The standard points that delineate the standard line are often invisible in the actual connector or appear on other planes, and cannot be seen in the same lens at the same time. In some cases, it is necessary to grind the plastic of the connector box to replace the position of the reference line.        

        The lithium battery used in new energy vehicles has a large capacity. Under the circumstances, it lasts 400 kilometers, the power consumption is 14 kilometers for 100 kilometers, the calculated charge is 56 kilometers, and the weight is 350-400 kilometers. Its working voltage range has risen sharply from 14v for traditional cars to 400kwh. Therefore, new energy vehicle connectors provide high voltage connectors, which are the heaviest V connectors for new energy vehicles and require corresponding high voltage connectors.        

        With the improvement of automotive intelligence, in addition to traditional engine management systems and other devices that require connectors to connect to data, more and more advanced in-vehicle entertainment systems, intelligent driving systems, etc., have more and more demand for connectors.